that can be split; fissionable: said of atoms, cells, etc.
Origin of fissileClassical Latin fissilis ; from fissus, past participle of findere, to cleave: see fission
- Possible to split.
- Physics Fissionable, especially by neutrons of all energies.
- Geology Easily split along close parallel planes.
Origin of fissileLatin fissilis, from fissus, split; see fissi–.